<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<script>
			var st="we change lives";
			st=st.toUpperCase();
			
			document.write(st);
			var pos=st.indexOf("E");
			alert(pos);
			var p2=st.indexOf("E",5);
			alert(p2);
			var s2="我喜欢java";
			alert(s2.charCodeAt(1));
			//!!!!!! static?
			var s3=String.fromCharCode(21016,21015);
			alert(s3);
		</script>
	</head>
	<body>
	</body>
</html>
